Static induction type semiconductor device

Details Static induction type semiconductor device Static induction type semiconductor device

1990-08-02

1991-02-19

James, Andrew J.

357 36, 357 22, H01L 2978, H01L 2972, H01L 2980

Patent

active

049948709

ABSTRACT:
A static induction type semiconductor device is used as a power transistor. It is of the surface gate type and is used for providing a high current density. The static induction type semiconductor device provides a plurality of small source regions surrounded by a gate region. According to this structure, the channel region beneath the source region becomes small, thereby increasing the stored carrier density and enabling a large main current to flow when using a small gate current, thereby achieving a high current amplification ratio. Further, when it flows the main current is distributed to the source regions, thus preventing increase in on-voltage.

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